Hawkeye Electric and Magnetic Field Radio Frequency Spectrum Analyzer High Time Resolution

Description

The CDF file contains approximately 22 second time resolution Electric and Magnetic field data, average magnetic field magnitude, and orbital position data from Hawkeye 1. The VLF experiment measured electric and magnetic fields using a 42.45-m electric dipole (tip-to-tip) which extended perpendicular to the spin axis and a search coil antenna deployed 1.58 m from the spacecraft. The electric field spectrum measurements were made in 16 logarithmically spaced frequency channels extending from 1.78 Hz to 178 kHz, and dc electric fields were also measured. The bandwidth of these channels varied from 7.5% to 30% depending on center frequency. Channel sensitivity and dynamic range were 1E-6 V/m and 100 dB, respectively. A wideband receiver was also used, with two selectable bandwidth ranges: 0.15 to 10 kHz or 1 to 45 kHz. The magnetic field spectrum was measured in eight discrete, logarithmically spaced channels from 1.78 Hz to 5.62 kHz. The bandwidth of these channels varied from 7.5% to 30% depending on frequency. The dynamic range was 100 dB, and the sensitivity ranged from 0.1 nT at 1.78 Hz to 3.4E-4 nT at 5.62 kHz. The wideband receiver described above could be used with the magnetic antenna. Each discrete channel was sampled once every 11.52 s.

Resources

Name Format Description Link
5 https://spdf.gsfc.nasa.gov%2Fpub%2Fdata%2Fhawkeye%2Fdocuments%2Farchived_website%2Fhawkeye.html
5 https://nssdc.gsfc.nasa.gov%2Fnmc%2Fexperiment%2Fdisplay.action%3Fid%3D1974-040A-03
21 https://doi.org/10.48322/etz7-wx98
21 hawkeye.html https://spdf.gsfc.nasa.gov/pub/data/hawkeye/documents/archived_website/hawkeye.html
5 https://nssdc.gsfc.nasa.gov/nmc/experiment/display.action?id=1974-040A-03
5 https://search.earthdata.nasa.gov/search?q=te11lgxd_348&ac=true
21 https://doi.org/10.3334/ORNLDAAC/348
57 te11lgxd_348.zip https://data.ornldaac.earthdata.nasa.gov/protected/bundle/te11lgxd_348.zip
34 boreas_logo_square.png https://daac.ornl.gov/graphics/browse/project/square/boreas_logo_square.png
33 TE11_Leaf_Gas_Exchange.pdf https://data.ornldaac.earthdata.nasa.gov/public/boreas/TE/te11lgxd/comp/TE11_Leaf_Gas_Exchange.pdf
5 TE11_Leaf_Gas_Exchange.doc https://data.ornldaac.earthdata.nasa.gov/public/boreas/TE/te11lgxd/comp/TE11_Leaf_Gas_Exchange.doc
47 TE11_Leaf_Gas_Exchange.txt https://data.ornldaac.earthdata.nasa.gov/public/boreas/TE/te11lgxd/comp/TE11_Leaf_Gas_Exchange.txt
5 te11lgxd.def https://data.ornldaac.earthdata.nasa.gov/public/boreas/TE/te11lgxd/comp/te11lgxd.def
0 The metadata's original source. https://cmr.earthdata.nasa.gov/search/concepts/C2808129876-ORNL_CLOUD.iso19115

Tags

  • akr
  • spectrum-dynamic-spectrogram
  • type-iii-solar-radio-burst
  • terrestrial-kilometric-radiation
  • solar-radio-burst
  • ion-cyclotron-waves
  • auroral-hiss
  • continuum-radiation
  • tkr
  • auroral-kilometric-radiation
  • waves-passive
  • spectrogram
  • broad-band-electrostatic-noise

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